Hypercode Syntax Specification#5
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links to correct relative path.
SoundBlaster
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Aug 17, 2025
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I think, this BNF specification describes the current ANTLR4 Lexer and Parser, and it complies with the Hypercode RFC.
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@copilot review this PR please |
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@SoundBlaster I've opened a new pull request, #6, to work on those changes. Once the pull request is ready, I'll request review from you. |
Hypercode Syntax Specification
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Pull request overview
This PR adds a formal Hypercode Syntax Specification document and updates references to point to the new specification file.
- Introduces a BNF/EBNF grammar specification for Hypercode
.hcfiles - Updates relative path references in RFC/Hypercode.md to correctly point to the new specification location
- Includes comprehensive examples, test cases, and AST visualization
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.
| File | Description |
|---|---|
| RFC/Hypercode.md | Updated two relative path references from incorrect paths to ../EBNF/Hypercode_Syntax.md |
| EBNF/Hypercode_Syntax.md | New syntax specification document defining the formal grammar, with examples and test cases |
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Builds on the prior whitespace formalization in this PR. The <block> rule still duplicated indentation: both <indent-block> and each <command-line>'s <indent> described the same leading whitespace, which is the ambiguity raised in review and cannot express that a child must be indented deeper than its parent. Align the BNF with the existing ANTLR grammar (HypercodeParser.g4 / HypercodeLexer.g4): - drop <indent> from <command-line> - define <block> with synthetic <INDENT> / <DEDENT> tokens - remove the now-unused <indent-block>; keep the <indent>/<spaces>/<tabs> rules as the lexer-level definition of indentation whitespace - document the off-side rule and lexer-driven indentation in Notes Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add .github/workflows/ci.yml: on every pull_request (and push to main), set up JDK 17 and run `make -C EBNF test-all`, giving PRs an actual status check instead of manual local verification. Also fix a latent Makefile bug that the workflow depends on: the `build` target referenced $(ANTLR_JAR) but did not depend on the download target, so `make test-all` failed on a clean checkout even though the README promises the jar is fetched automatically. Add $(ANTLR_JAR) as a prerequisite of `build`. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The ANTLR playground lives in EBNF/, not examples/antlr/ — update the Quick Start cd target and the directory-layout heading. Also correct the clone URL org from 0AL to the actual remote 0al-spec. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Fixes #2